The Marketplace Commission Manager computes seller commissions with real-world flexibility: category rates, volume tiers, vendor-specific overrides, promotional windows, and minimum fees. For marketplace operators whose commission policy outgrew a single percentage — which happens to every marketplace that survives its first year. Planned features include stacked rule resolution with clear precedence, effective-dated rate changes, per-line commission calculation visible on each order, promotional commission holidays, fee floors and caps, commission invoices or deduction statements per settlement cycle, and an audit view explaining exactly why each fee was charged. This app is currently in development on the ECOSIRE build pipeline. It will ship for Odoo 17, 18, and 19 simultaneously — the same triple-version coverage as every live ECOSIRE app. One-time license, free updates within your major version. Register your interest on this page to be notified at launch and to help shape the first release.